If using Desktop, click HERE.
If using Mobile Web (not the App), click HERE.
Click on the "Three White Lines" at the top of the site.
Click "Get Togethers".
Click "Get-Togethers Joined".
Click on the name of the Get Together to view it.
Now that you know how to view the Get Togethers you've joined, head over to the site and see your Get Togethers you're a part of by clicking HERE.